The contrast between a single, thorough deed, and the mere emptiness of speech.

In all labor there is profit - If a man work at his trade, he gains by it; if he cultivate the earth, it will yield an increase; and in proportion as he labors, so will be his profit: but he who talks much labors little. And a man words is seldom a man of deeds. Less talk and more work, is one of our own ancient advices.

In all labour there is profit,.... Or "abundance" (u); much is got by it, food, raiment, riches, wealth, wisdom, honour; either with the labour of the hands or head, and nothing is to be got without labour; and he that is laborious in his calling, whether it be by manual operation, working with his hands that which is good; or by hard study, much reading, and constant meditation, is like to gain much for his own use and the good of others;
but the talk of the lips tendeth only to penury; or "want" (w), of food and raiment, the common necessaries of life; a man that spends his time in idle talk, boasting of what he can do and does, and yet does nothing, is in a fair way to come to beggary: so all talk about wisdom, and knowledge, and religion, without making use of the proper means of improvement, tends to the poverty of the mind; and generally they are most empty of knowledge, natural or spiritual, that talk and brag most of it; empty casks make the greatest sound; good discourse, wholesome words, sound doctrine, thoroughly digested, tend indeed to edification, to the enriching of the mind; but vain words, the enticing words of men's wisdom; logomachies, striving about words to no profit; and all great swelling words of vanity, which are all mere lip labour; they tend to spiritual poverty and leanness of soul.
(u) "abundantia", Tigurine version, Baynus, Mercerus, Gejerus. (w) "ad defectum", Pagninus, Montanus; "ad egestatem", Tigurine version, Piscator, Cocceius.

Labour of the head, or of the hand, will turn to some good account. But if men's religion runs all out in talk and noise, they will come to nothing.

labour--painful diligence.
talk . . . penury--idle and vain promises and plans.

There now follows a considerable series of proverbs (Proverbs 14:23-31) which, with a single exception (Proverbs 14:24), have all this in common, that one or two key-words in them begin with מ.
23 In all labour there is gain,
But idle talk leadeth only to loss.
Here the key-words are מותר and מחסור (parallel Proverbs 21:5, cf. with Proverbs 11:24), which begin with מ. עצב is labour, and that earnest and unwearied, as at Proverbs 10:22. If one toils on honestly, then there always results from it something which stands forth above the endeavour as its result and product, vid., at Job 30:11, where it is shown how יתר, from the primary meaning to be stretched out long, acquires the meaning of that which hangs over, shoots over, copiousness, and gain. By the word of the lips, on the contrary, i.e., purposeless and inoperative talk (דּבר שׂפתים as Isaiah 36:5, cf. Job 11:2), nothing is gained, but on the contrary there is only loss, for by it one only robs both himself and others of time, and wastes strength, which might have been turned to better purpose, to say nothing of the injury that is thereby done to his soul; perhaps also he morally injures, or at least discomposes and wearies others.

The talk - Idle talking will bring a man to poverty.